Summer Thunder 10K
HANSCOM AIR FORCE BASE, Mass. – Col. Mary McRae (left), Electronic Systems Center chief of staff and Maj. (Dr.) Derek Speten, 66th Medical Group Diagnostics and Therapeutics flight commander, run in the Summer Thunder 10K race, which began and finished at the Fitness and Sports Center, on June 16. (U.S. Air Force photo by Mark Wyatt)